Innocent Phone Thief Prank

Prank victims passing by in the mall see a woman drop her cell phone. As they try to tell her that she's dropped her phone, a trolley piled high with boxes passes by and the phone magically disappears from the floor where it just was a second ago. The victims have no idea where this lady's phone went, but when the lady finds it in their bags, the Good Samaritans look like lying thieves. Confused, they try to explain themselves out of a seemingly impossible - and very sticky - situation.